便携式二氧化碳激光治疗机
portable CO^2 laser cure instrument
有机化纳米二氧化硅
organically modified nano-silica
自冷式二氧化碳激光美容治疗机
self-cooling CO2 laser cosmetic therapeutic machine
氮氧化铪薄膜
HfO(subscript x)N(subscript y) thin films
HfOxNy thin films
新型二氧化碳压缩机和汽轮机
the new type CO2 compressor and its turbine
纳米孔阵列结构铝氧化物薄膜
alumina film with nano-pore array structure